Nabil

Add Hamming Distance KNN similarity metric for long property

5

_This is a draft PR so I can leverage the github action to validate my tests, since the gradle setup for this project does not work on Apple silicon (M1)....

npm build errors on rpi

1

I followed your tutorial: [http://andrewkelley.me/post/raspberry-pi-music-player-server.html](http://andrewkelley.me/post/raspberry-pi-music-player-server.html) And I have nodejs 0.10.29 installed so here are the errors: `pi@raspberrypi:~/groovebasin $ npm run build > [email protected] build /home/pi/groovebasin > npm install && ./build...

[Navigator-staging-jmx.zip](https://github.com/DFO-Ocean-Navigator/Ocean-Data-Map-Project/files/8794110/Navigator-staging.zip) Ran via ```sh ./jmeter.sh -n -t Navigator-staging.jmx -l tests/run1/ -e -o tests/out1 ``` Extract this zip file and open the `index.html` to view the results: [250-concurrent-users.zip](https://github.com/DFO-Ocean-Navigator/Ocean-Data-Map-Project/files/8794103/250-concurrent-users.zip) Summary:  ...

Understanding memory consumption

7

A random tile (produced by using gunicorn `./launch_web_service.sh`): `/api/v1.0/tiles/gaussian/25/10/EPSG:3857/giops_day/votemper/2281521600/0/-5,30/3/3/3.png` produces the following memory profile ``` Filename: /home/ubuntu/onav-cloud/Ocean-Data-Map-Project/data/__init__.py Line # Mem usage Increment Occurrences Line Contents ============================================================= 9 185.0 MiB 185.0...

Understanding slow observations performance

2

Observations are slow to load on the website. ```sql -- MySQL dump 10.19 Distrib 10.3.34-MariaDB, for debian-linux-gnu (x86_64) -- -- Host: localhost Database: navigator -- ------------------------------------------------------ -- Server version 10.3.34-MariaDB-0ubuntu0.20.04.1...

* https://github.com/fsspec/kerchunk * https://github.com/pangeo-forge/pangeo-forge-recipes * https://github.com/intake/intake * https://github.com/stac-utils/pystac

`data_array_to_geojson` performance profile

1

Was curious to know how this function is performing with GIOPS 10 day forecast latlon. How I instrumented the file ```bash pip install line_profiler ``` then, ```diff diff --git a/data/transformers/geojson.py...

Stuff that might be slow

4

First of all we should set up instrumentation to help with diagnosing what's slow and where. Flamegraphs and API metrics come to mind. Stuff that could be causing slowness: *...

Add "Acoustic water column profiling" calculations

2

- Sonic Layer Depth - Cut off frequency - Sub-surface channel axis depth - Depth excess (email Erica for more details regarding calculations if needed)

#689 makes a first cut at figuring out an optimal chunk size of 200. But the question stands, is there a more optimal number?